senile

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Related to gerontic: gastronome, toponym, gerontic nursing

senile

(of land forms or rivers) at an advanced stage in the cycle of erosion

senile

[′sē‚nīl]
(geology)
Pertaining to the stage of senility of the cycle or erosion.
(medicine)
Of, pertaining to, or caused by the aging process or by the infirmities of old age.
References in periodicals archive ?
Foraminifera with two or more ultimate chambers are perhaps some sort of gerontic kummerforms.